Home / 143,848.66-215,835.21-77,210.93

Finding the Fourth Proportional to 143,848.66, 215,835.21 and 77,210.93

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Solution

The fourth proportional to 143,848.66, 215,835.21 and 77,210.93 is: 115,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,848.66 : 215,835.21 = 77,210.93 : x
  2. Step 2: Convert to fraction form
    143,848.66/215,835.21 = 77,210.93/x
  3. Step 3: Cross multiply
    143,848.66x = 215,835.21 × 77,210.93
  4. Step 4: Simplify right side
    143,848.66x = 16,664,836,904.79
  5. Step 5: Solve for x
    x = 16,664,836,904.79/143,848.66
  6. Step 6: Final answer
    x = 115,849.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.