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Finding the Fourth Proportional to 125,297.70, 172,900.12 and 70,847.19

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Solution

The fourth proportional to 125,297.70, 172,900.12 and 70,847.19 is: 97,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,297.70 : 172,900.12 = 70,847.19 : x
  2. Step 2: Convert to fraction form
    125,297.70/172,900.12 = 70,847.19/x
  3. Step 3: Cross multiply
    125,297.70x = 172,900.12 × 70,847.19
  4. Step 4: Simplify right side
    125,297.70x = 12,249,488,084.91
  5. Step 5: Solve for x
    x = 12,249,488,084.91/125,297.70
  6. Step 6: Final answer
    x = 97,763.08

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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.