Home / 118,931.20-164,211.14-76,563.52

Finding the Fourth Proportional to 118,931.20, 164,211.14 and 76,563.52

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Solution

The fourth proportional to 118,931.20, 164,211.14 and 76,563.52 is: 105,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,931.20 : 164,211.14 = 76,563.52 : x
  2. Step 2: Convert to fraction form
    118,931.20/164,211.14 = 76,563.52/x
  3. Step 3: Cross multiply
    118,931.20x = 164,211.14 × 76,563.52
  4. Step 4: Simplify right side
    118,931.20x = 12,572,582,901.61
  5. Step 5: Solve for x
    x = 12,572,582,901.61/118,931.20
  6. Step 6: Final answer
    x = 105,713.08

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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.