Home / 124,872.08-172,340.36-70,435.42

Finding the Fourth Proportional to 124,872.08, 172,340.36 and 70,435.42

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Solution

The fourth proportional to 124,872.08, 172,340.36 and 70,435.42 is: 97,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,872.08 : 172,340.36 = 70,435.42 : x
  2. Step 2: Convert to fraction form
    124,872.08/172,340.36 = 70,435.42/x
  3. Step 3: Cross multiply
    124,872.08x = 172,340.36 × 70,435.42
  4. Step 4: Simplify right side
    124,872.08x = 12,138,865,639.55
  5. Step 5: Solve for x
    x = 12,138,865,639.55/124,872.08
  6. Step 6: Final answer
    x = 97,210.41

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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.