Home / 129,971.04-179,339.74-73,381.20

Finding the Fourth Proportional to 129,971.04, 179,339.74 and 73,381.20

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Solution

The fourth proportional to 129,971.04, 179,339.74 and 73,381.20 is: 101,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,971.04 : 179,339.74 = 73,381.20 : x
  2. Step 2: Convert to fraction form
    129,971.04/179,339.74 = 73,381.20/x
  3. Step 3: Cross multiply
    129,971.04x = 179,339.74 × 73,381.20
  4. Step 4: Simplify right side
    129,971.04x = 13,160,165,328.89
  5. Step 5: Solve for x
    x = 13,160,165,328.89/129,971.04
  6. Step 6: Final answer
    x = 101,254.60

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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.