Home / 153,147.74-211,312.91-89,473.23

Finding the Fourth Proportional to 153,147.74, 211,312.91 and 89,473.23

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Solution

The fourth proportional to 153,147.74, 211,312.91 and 89,473.23 is: 123,454.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,147.74 : 211,312.91 = 89,473.23 : x
  2. Step 2: Convert to fraction form
    153,147.74/211,312.91 = 89,473.23/x
  3. Step 3: Cross multiply
    153,147.74x = 211,312.91 × 89,473.23
  4. Step 4: Simplify right side
    153,147.74x = 18,906,849,704.86
  5. Step 5: Solve for x
    x = 18,906,849,704.86/153,147.74
  6. Step 6: Final answer
    x = 123,454.97

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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.