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Finding the Fourth Proportional to 142,702.40, 213,859.20 and 95,182.40

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Solution

The fourth proportional to 142,702.40, 213,859.20 and 95,182.40 is: 142,643.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,702.40 : 213,859.20 = 95,182.40 : x
  2. Step 2: Convert to fraction form
    142,702.40/213,859.20 = 95,182.40/x
  3. Step 3: Cross multiply
    142,702.40x = 213,859.20 × 95,182.40
  4. Step 4: Simplify right side
    142,702.40x = 20,355,631,918.08
  5. Step 5: Solve for x
    x = 20,355,631,918.08/142,702.40
  6. Step 6: Final answer
    x = 142,643.94

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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.