Home / 125,106.32-172,603.83-71,352.68

Finding the Fourth Proportional to 125,106.32, 172,603.83 and 71,352.68

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Solution

The fourth proportional to 125,106.32, 172,603.83 and 71,352.68 is: 98,442.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,106.32 : 172,603.83 = 71,352.68 : x
  2. Step 2: Convert to fraction form
    125,106.32/172,603.83 = 71,352.68/x
  3. Step 3: Cross multiply
    125,106.32x = 172,603.83 × 71,352.68
  4. Step 4: Simplify right side
    125,106.32x = 12,315,745,848.76
  5. Step 5: Solve for x
    x = 12,315,745,848.76/125,106.32
  6. Step 6: Final answer
    x = 98,442.24

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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.