Home / 129,877.95-179,272.40-76,184.67

Finding the Fourth Proportional to 129,877.95, 179,272.40 and 76,184.67

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Solution

The fourth proportional to 129,877.95, 179,272.40 and 76,184.67 is: 105,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,877.95 : 179,272.40 = 76,184.67 : x
  2. Step 2: Convert to fraction form
    129,877.95/179,272.40 = 76,184.67/x
  3. Step 3: Cross multiply
    129,877.95x = 179,272.40 × 76,184.67
  4. Step 4: Simplify right side
    129,877.95x = 13,657,808,253.18
  5. Step 5: Solve for x
    x = 13,657,808,253.18/129,877.95
  6. Step 6: Final answer
    x = 105,158.79

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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.