Home / 129,981.18-179,374.48-70,365.18

Finding the Fourth Proportional to 129,981.18, 179,374.48 and 70,365.18

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Solution

The fourth proportional to 129,981.18, 179,374.48 and 70,365.18 is: 97,104.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981.18 : 179,374.48 = 70,365.18 : x
  2. Step 2: Convert to fraction form
    129,981.18/179,374.48 = 70,365.18/x
  3. Step 3: Cross multiply
    129,981.18x = 179,374.48 × 70,365.18
  4. Step 4: Simplify right side
    129,981.18x = 12,621,717,572.61
  5. Step 5: Solve for x
    x = 12,621,717,572.61/129,981.18
  6. Step 6: Final answer
    x = 97,104.19

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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.