Home / 155,212.80-232,646.40-66,451.20

Finding the Fourth Proportional to 155,212.80, 232,646.40 and 66,451.20

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Solution

The fourth proportional to 155,212.80, 232,646.40 and 66,451.20 is: 99,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,212.80 : 232,646.40 = 66,451.20 : x
  2. Step 2: Convert to fraction form
    155,212.80/232,646.40 = 66,451.20/x
  3. Step 3: Cross multiply
    155,212.80x = 232,646.40 × 66,451.20
  4. Step 4: Simplify right side
    155,212.80x = 15,459,632,455.68
  5. Step 5: Solve for x
    x = 15,459,632,455.68/155,212.80
  6. Step 6: Final answer
    x = 99,602.82

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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.