Home / 112,312.16-155,154.72-97,178.54

Finding the Fourth Proportional to 112,312.16, 155,154.72 and 97,178.54

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Solution

The fourth proportional to 112,312.16, 155,154.72 and 97,178.54 is: 134,248.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,312.16 : 155,154.72 = 97,178.54 : x
  2. Step 2: Convert to fraction form
    112,312.16/155,154.72 = 97,178.54/x
  3. Step 3: Cross multiply
    112,312.16x = 155,154.72 × 97,178.54
  4. Step 4: Simplify right side
    112,312.16x = 15,077,708,387.94
  5. Step 5: Solve for x
    x = 15,077,708,387.94/112,312.16
  6. Step 6: Final answer
    x = 134,248.23

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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.