Home / 109,869.14-151,622.40-62,129.63

Finding the Fourth Proportional to 109,869.14, 151,622.40 and 62,129.63

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Solution

The fourth proportional to 109,869.14, 151,622.40 and 62,129.63 is: 85,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.14 : 151,622.40 = 62,129.63 : x
  2. Step 2: Convert to fraction form
    109,869.14/151,622.40 = 62,129.63/x
  3. Step 3: Cross multiply
    109,869.14x = 151,622.40 × 62,129.63
  4. Step 4: Simplify right side
    109,869.14x = 9,420,242,853.60
  5. Step 5: Solve for x
    x = 9,420,242,853.60/109,869.14
  6. Step 6: Final answer
    x = 85,740.58

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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.