Home / 127,782.18-176,340.61-70,423.57

Finding the Fourth Proportional to 127,782.18, 176,340.61 and 70,423.57

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Solution

The fourth proportional to 127,782.18, 176,340.61 and 70,423.57 is: 97,185.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,782.18 : 176,340.61 = 70,423.57 : x
  2. Step 2: Convert to fraction form
    127,782.18/176,340.61 = 70,423.57/x
  3. Step 3: Cross multiply
    127,782.18x = 176,340.61 × 70,423.57
  4. Step 4: Simplify right side
    127,782.18x = 12,418,535,501.20
  5. Step 5: Solve for x
    x = 12,418,535,501.20/127,782.18
  6. Step 6: Final answer
    x = 97,185.19

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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.