Home / 151,332.40-208,820.43-86,798.30

Finding the Fourth Proportional to 151,332.40, 208,820.43 and 86,798.30

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Solution

The fourth proportional to 151,332.40, 208,820.43 and 86,798.30 is: 119,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,332.40 : 208,820.43 = 86,798.30 : x
  2. Step 2: Convert to fraction form
    151,332.40/208,820.43 = 86,798.30/x
  3. Step 3: Cross multiply
    151,332.40x = 208,820.43 × 86,798.30
  4. Step 4: Simplify right side
    151,332.40x = 18,125,257,285.17
  5. Step 5: Solve for x
    x = 18,125,257,285.17/151,332.40
  6. Step 6: Final answer
    x = 119,771.16

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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.