Home / 109,729.67-151,430.06-61,985.03

Finding the Fourth Proportional to 109,729.67, 151,430.06 and 61,985.03

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Solution

The fourth proportional to 109,729.67, 151,430.06 and 61,985.03 is: 85,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,729.67 : 151,430.06 = 61,985.03 : x
  2. Step 2: Convert to fraction form
    109,729.67/151,430.06 = 61,985.03/x
  3. Step 3: Cross multiply
    109,729.67x = 151,430.06 × 61,985.03
  4. Step 4: Simplify right side
    109,729.67x = 9,386,396,502.08
  5. Step 5: Solve for x
    x = 9,386,396,502.08/109,729.67
  6. Step 6: Final answer
    x = 85,541.10

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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.