Home / 112,320.88-155,009.12-61,338.35

Finding the Fourth Proportional to 112,320.88, 155,009.12 and 61,338.35

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Solution

The fourth proportional to 112,320.88, 155,009.12 and 61,338.35 is: 84,650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,320.88 : 155,009.12 = 61,338.35 : x
  2. Step 2: Convert to fraction form
    112,320.88/155,009.12 = 61,338.35/x
  3. Step 3: Cross multiply
    112,320.88x = 155,009.12 × 61,338.35
  4. Step 4: Simplify right side
    112,320.88x = 9,508,002,574.01
  5. Step 5: Solve for x
    x = 9,508,002,574.01/112,320.88
  6. Step 6: Final answer
    x = 84,650.36

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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.