Home / 123,301.06-170,155.53-85,597.18

Finding the Fourth Proportional to 123,301.06, 170,155.53 and 85,597.18

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Solution

The fourth proportional to 123,301.06, 170,155.53 and 85,597.18 is: 118,124.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,301.06 : 170,155.53 = 85,597.18 : x
  2. Step 2: Convert to fraction form
    123,301.06/170,155.53 = 85,597.18/x
  3. Step 3: Cross multiply
    123,301.06x = 170,155.53 × 85,597.18
  4. Step 4: Simplify right side
    123,301.06x = 14,564,833,529.41
  5. Step 5: Solve for x
    x = 14,564,833,529.41/123,301.06
  6. Step 6: Final answer
    x = 118,124.16

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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.