Home / 105,286.18-145,248.28-62,820.04

Finding the Fourth Proportional to 105,286.18, 145,248.28 and 62,820.04

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Solution

The fourth proportional to 105,286.18, 145,248.28 and 62,820.04 is: 86,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,286.18 : 145,248.28 = 62,820.04 : x
  2. Step 2: Convert to fraction form
    105,286.18/145,248.28 = 62,820.04/x
  3. Step 3: Cross multiply
    105,286.18x = 145,248.28 × 62,820.04
  4. Step 4: Simplify right side
    105,286.18x = 9,124,502,759.53
  5. Step 5: Solve for x
    x = 9,124,502,759.53/105,286.18
  6. Step 6: Final answer
    x = 86,663.82

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1.5x scale

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.