Home / 142,444.56-196,565.52-77,900.96

Finding the Fourth Proportional to 142,444.56, 196,565.52 and 77,900.96

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Solution

The fourth proportional to 142,444.56, 196,565.52 and 77,900.96 is: 107,498.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,444.56 : 196,565.52 = 77,900.96 : x
  2. Step 2: Convert to fraction form
    142,444.56/196,565.52 = 77,900.96/x
  3. Step 3: Cross multiply
    142,444.56x = 196,565.52 × 77,900.96
  4. Step 4: Simplify right side
    142,444.56x = 15,312,642,710.90
  5. Step 5: Solve for x
    x = 15,312,642,710.90/142,444.56
  6. Step 6: Final answer
    x = 107,498.96

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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.