Home / 123,470.10-185,205.15-121,501.80

Finding the Fourth Proportional to 123,470.10, 185,205.15 and 121,501.80

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Solution

The fourth proportional to 123,470.10, 185,205.15 and 121,501.80 is: 182,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,470.10 : 185,205.15 = 121,501.80 : x
  2. Step 2: Convert to fraction form
    123,470.10/185,205.15 = 121,501.80/x
  3. Step 3: Cross multiply
    123,470.10x = 185,205.15 × 121,501.80
  4. Step 4: Simplify right side
    123,470.10x = 22,502,759,094.27
  5. Step 5: Solve for x
    x = 22,502,759,094.27/123,470.10
  6. Step 6: Final answer
    x = 182,252.70

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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.