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Finding the Fourth Proportional to 101,541.47, 140,121.65 and 60,706.40

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Solution

The fourth proportional to 101,541.47, 140,121.65 and 60,706.40 is: 83,771.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,541.47 : 140,121.65 = 60,706.40 : x
  2. Step 2: Convert to fraction form
    101,541.47/140,121.65 = 60,706.40/x
  3. Step 3: Cross multiply
    101,541.47x = 140,121.65 × 60,706.40
  4. Step 4: Simplify right side
    101,541.47x = 8,506,281,435.63
  5. Step 5: Solve for x
    x = 8,506,281,435.63/101,541.47
  6. Step 6: Final answer
    x = 83,771.50

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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.