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Finding the Fourth Proportional to 158,347.59, 218,523.21 and 90,363.21

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Solution

The fourth proportional to 158,347.59, 218,523.21 and 90,363.21 is: 124,703.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,347.59 : 218,523.21 = 90,363.21 : x
  2. Step 2: Convert to fraction form
    158,347.59/218,523.21 = 90,363.21/x
  3. Step 3: Cross multiply
    158,347.59x = 218,523.21 × 90,363.21
  4. Step 4: Simplify right side
    158,347.59x = 19,746,458,715.10
  5. Step 5: Solve for x
    x = 19,746,458,715.10/158,347.59
  6. Step 6: Final answer
    x = 124,703.25

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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.