Home / 142,065,923.86-196,051,565.39-76,875,827.86

Finding the Fourth Proportional to 142,065,923.86, 196,051,565.39 and 76,875,827.86

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Solution

The fourth proportional to 142,065,923.86, 196,051,565.39 and 76,875,827.86 is: 106,088,961.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,065,923.86 : 196,051,565.39 = 76,875,827.86 : x
  2. Step 2: Convert to fraction form
    142,065,923.86/196,051,565.39 = 76,875,827.86/x
  3. Step 3: Cross multiply
    142,065,923.86x = 196,051,565.39 × 76,875,827.86
  4. Step 4: Simplify right side
    142,065,923.86x = 15,071,626,392,605,172
  5. Step 5: Solve for x
    x = 15,071,626,392,605,172/142,065,923.86
  6. Step 6: Final answer
    x = 106,088,961.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.