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Finding the Fourth Proportional to 152,040.20, 209,812.02 and 84,972.20

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Solution

The fourth proportional to 152,040.20, 209,812.02 and 84,972.20 is: 117,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,040.20 : 209,812.02 = 84,972.20 : x
  2. Step 2: Convert to fraction form
    152,040.20/209,812.02 = 84,972.20/x
  3. Step 3: Cross multiply
    152,040.20x = 209,812.02 × 84,972.20
  4. Step 4: Simplify right side
    152,040.20x = 17,828,188,925.84
  5. Step 5: Solve for x
    x = 17,828,188,925.84/152,040.20
  6. Step 6: Final answer
    x = 117,259.70

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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.