Home / 130,684.02-180,345.76-76,234.70

Finding the Fourth Proportional to 130,684.02, 180,345.76 and 76,234.70

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Solution

The fourth proportional to 130,684.02, 180,345.76 and 76,234.70 is: 105,204.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,684.02 : 180,345.76 = 76,234.70 : x
  2. Step 2: Convert to fraction form
    130,684.02/180,345.76 = 76,234.70/x
  3. Step 3: Cross multiply
    130,684.02x = 180,345.76 × 76,234.70
  4. Step 4: Simplify right side
    130,684.02x = 13,748,605,170.15
  5. Step 5: Solve for x
    x = 13,748,605,170.15/130,684.02
  6. Step 6: Final answer
    x = 105,204.95

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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.