Home / 103,219.20-142,444.80-62,935.20

Finding the Fourth Proportional to 103,219.20, 142,444.80 and 62,935.20

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Solution

The fourth proportional to 103,219.20, 142,444.80 and 62,935.20 is: 86,851.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,219.20 : 142,444.80 = 62,935.20 : x
  2. Step 2: Convert to fraction form
    103,219.20/142,444.80 = 62,935.20/x
  3. Step 3: Cross multiply
    103,219.20x = 142,444.80 × 62,935.20
  4. Step 4: Simplify right side
    103,219.20x = 8,964,791,976.96
  5. Step 5: Solve for x
    x = 8,964,791,976.96/103,219.20
  6. Step 6: Final answer
    x = 86,851.98

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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.