Home / 102,586.61-141,633.53-66,307.05

Finding the Fourth Proportional to 102,586.61, 141,633.53 and 66,307.05

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Solution

The fourth proportional to 102,586.61, 141,633.53 and 66,307.05 is: 91,545.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,586.61 : 141,633.53 = 66,307.05 : x
  2. Step 2: Convert to fraction form
    102,586.61/141,633.53 = 66,307.05/x
  3. Step 3: Cross multiply
    102,586.61x = 141,633.53 × 66,307.05
  4. Step 4: Simplify right side
    102,586.61x = 9,391,301,472.50
  5. Step 5: Solve for x
    x = 9,391,301,472.50/102,586.61
  6. Step 6: Final answer
    x = 91,545.10

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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.