Home / 158,344.85-218,461.65-90,312.68

Finding the Fourth Proportional to 158,344.85, 218,461.65 and 90,312.68

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Solution

The fourth proportional to 158,344.85, 218,461.65 and 90,312.68 is: 124,600.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,344.85 : 218,461.65 = 90,312.68 : x
  2. Step 2: Convert to fraction form
    158,344.85/218,461.65 = 90,312.68/x
  3. Step 3: Cross multiply
    158,344.85x = 218,461.65 × 90,312.68
  4. Step 4: Simplify right side
    158,344.85x = 19,729,857,088.72
  5. Step 5: Solve for x
    x = 19,729,857,088.72/158,344.85
  6. Step 6: Final answer
    x = 124,600.56

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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.