Home / 158,261.03-218,417.76-90,294.75

Finding the Fourth Proportional to 158,261.03, 218,417.76 and 90,294.75

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Solution

The fourth proportional to 158,261.03, 218,417.76 and 90,294.75 is: 124,616.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,261.03 : 218,417.76 = 90,294.75 : x
  2. Step 2: Convert to fraction form
    158,261.03/218,417.76 = 90,294.75/x
  3. Step 3: Cross multiply
    158,261.03x = 218,417.76 × 90,294.75
  4. Step 4: Simplify right side
    158,261.03x = 19,721,977,034.76
  5. Step 5: Solve for x
    x = 19,721,977,034.76/158,261.03
  6. Step 6: Final answer
    x = 124,616.77

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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.