Home / 100,943.52-139,302.16-58,510.24

Finding the Fourth Proportional to 100,943.52, 139,302.16 and 58,510.24

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Solution

The fourth proportional to 100,943.52, 139,302.16 and 58,510.24 is: 80,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,943.52 : 139,302.16 = 58,510.24 : x
  2. Step 2: Convert to fraction form
    100,943.52/139,302.16 = 58,510.24/x
  3. Step 3: Cross multiply
    100,943.52x = 139,302.16 × 58,510.24
  4. Step 4: Simplify right side
    100,943.52x = 8,150,602,814.12
  5. Step 5: Solve for x
    x = 8,150,602,814.12/100,943.52
  6. Step 6: Final answer
    x = 80,744.19

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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.