Home / 158,047.12-218,125.40-90,088.88

Finding the Fourth Proportional to 158,047.12, 218,125.40 and 90,088.88

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Solution

The fourth proportional to 158,047.12, 218,125.40 and 90,088.88 is: 124,334.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,047.12 : 218,125.40 = 90,088.88 : x
  2. Step 2: Convert to fraction form
    158,047.12/218,125.40 = 90,088.88/x
  3. Step 3: Cross multiply
    158,047.12x = 218,125.40 × 90,088.88
  4. Step 4: Simplify right side
    158,047.12x = 19,650,672,985.55
  5. Step 5: Solve for x
    x = 19,650,672,985.55/158,047.12
  6. Step 6: Final answer
    x = 124,334.27

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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.