Home / 129,931.04-179,304.80-70,315.04

Finding the Fourth Proportional to 129,931.04, 179,304.80 and 70,315.04

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Solution

The fourth proportional to 129,931.04, 179,304.80 and 70,315.04 is: 97,034.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,931.04 : 179,304.80 = 70,315.04 : x
  2. Step 2: Convert to fraction form
    129,931.04/179,304.80 = 70,315.04/x
  3. Step 3: Cross multiply
    129,931.04x = 179,304.80 × 70,315.04
  4. Step 4: Simplify right side
    129,931.04x = 12,607,824,184.19
  5. Step 5: Solve for x
    x = 12,607,824,184.19/129,931.04
  6. Step 6: Final answer
    x = 97,034.74

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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.