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Finding the Fourth Proportional to 140,006.60, 210,009.90 and 125,572.40

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Solution

The fourth proportional to 140,006.60, 210,009.90 and 125,572.40 is: 188,358.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,006.60 : 210,009.90 = 125,572.40 : x
  2. Step 2: Convert to fraction form
    140,006.60/210,009.90 = 125,572.40/x
  3. Step 3: Cross multiply
    140,006.60x = 210,009.90 × 125,572.40
  4. Step 4: Simplify right side
    140,006.60x = 26,371,447,166.76
  5. Step 5: Solve for x
    x = 26,371,447,166.76/140,006.60
  6. Step 6: Final answer
    x = 188,358.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.