Home / 94,140.90-129,908.61-86,617.62

Finding the Fourth Proportional to 94,140.90, 129,908.61 and 86,617.62

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Solution

The fourth proportional to 94,140.90, 129,908.61 and 86,617.62 is: 119,526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,140.90 : 129,908.61 = 86,617.62 : x
  2. Step 2: Convert to fraction form
    94,140.90/129,908.61 = 86,617.62/x
  3. Step 3: Cross multiply
    94,140.90x = 129,908.61 × 86,617.62
  4. Step 4: Simplify right side
    94,140.90x = 11,252,374,615.71
  5. Step 5: Solve for x
    x = 11,252,374,615.71/94,140.90
  6. Step 6: Final answer
    x = 119,526.95

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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.