Home / 112,401.48-155,117.64-61,419.04

Finding the Fourth Proportional to 112,401.48, 155,117.64 and 61,419.04

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Solution

The fourth proportional to 112,401.48, 155,117.64 and 61,419.04 is: 84,760.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,401.48 : 155,117.64 = 61,419.04 : x
  2. Step 2: Convert to fraction form
    112,401.48/155,117.64 = 61,419.04/x
  3. Step 3: Cross multiply
    112,401.48x = 155,117.64 × 61,419.04
  4. Step 4: Simplify right side
    112,401.48x = 9,527,176,535.87
  5. Step 5: Solve for x
    x = 9,527,176,535.87/112,401.48
  6. Step 6: Final answer
    x = 84,760.24

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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.