Home / 148,839.40-223,259.10-86,631.40

Finding the Fourth Proportional to 148,839.40, 223,259.10 and 86,631.40

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Solution

The fourth proportional to 148,839.40, 223,259.10 and 86,631.40 is: 129,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,839.40 : 223,259.10 = 86,631.40 : x
  2. Step 2: Convert to fraction form
    148,839.40/223,259.10 = 86,631.40/x
  3. Step 3: Cross multiply
    148,839.40x = 223,259.10 × 86,631.40
  4. Step 4: Simplify right side
    148,839.40x = 19,341,248,395.74
  5. Step 5: Solve for x
    x = 19,341,248,395.74/148,839.40
  6. Step 6: Final answer
    x = 129,947.10

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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.