Home / 123,302.06-170,156.91-85,598.18

Finding the Fourth Proportional to 123,302.06, 170,156.91 and 85,598.18

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Solution

The fourth proportional to 123,302.06, 170,156.91 and 85,598.18 is: 118,125.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,302.06 : 170,156.91 = 85,598.18 : x
  2. Step 2: Convert to fraction form
    123,302.06/170,156.91 = 85,598.18/x
  3. Step 3: Cross multiply
    123,302.06x = 170,156.91 × 85,598.18
  4. Step 4: Simplify right side
    123,302.06x = 14,565,121,810.42
  5. Step 5: Solve for x
    x = 14,565,121,810.42/123,302.06
  6. Step 6: Final answer
    x = 118,125.54

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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.