Home / 157,521.20-236,281.80-82,612.40

Finding the Fourth Proportional to 157,521.20, 236,281.80 and 82,612.40

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Solution

The fourth proportional to 157,521.20, 236,281.80 and 82,612.40 is: 123,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,521.20 : 236,281.80 = 82,612.40 : x
  2. Step 2: Convert to fraction form
    157,521.20/236,281.80 = 82,612.40/x
  3. Step 3: Cross multiply
    157,521.20x = 236,281.80 × 82,612.40
  4. Step 4: Simplify right side
    157,521.20x = 19,519,806,574.32
  5. Step 5: Solve for x
    x = 19,519,806,574.32/157,521.20
  6. Step 6: Final answer
    x = 123,918.60

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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.