Home / 106,478.20-146,862.75-72,426.23

Finding the Fourth Proportional to 106,478.20, 146,862.75 and 72,426.23

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Solution

The fourth proportional to 106,478.20, 146,862.75 and 72,426.23 is: 99,895.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,478.20 : 146,862.75 = 72,426.23 : x
  2. Step 2: Convert to fraction form
    106,478.20/146,862.75 = 72,426.23/x
  3. Step 3: Cross multiply
    106,478.20x = 146,862.75 × 72,426.23
  4. Step 4: Simplify right side
    106,478.20x = 10,636,714,373.80
  5. Step 5: Solve for x
    x = 10,636,714,373.80/106,478.20
  6. Step 6: Final answer
    x = 99,895.70

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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.