Home / 130,302.61-179,798.47-72,938.95

Finding the Fourth Proportional to 130,302.61, 179,798.47 and 72,938.95

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Solution

The fourth proportional to 130,302.61, 179,798.47 and 72,938.95 is: 100,645.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,302.61 : 179,798.47 = 72,938.95 : x
  2. Step 2: Convert to fraction form
    130,302.61/179,798.47 = 72,938.95/x
  3. Step 3: Cross multiply
    130,302.61x = 179,798.47 × 72,938.95
  4. Step 4: Simplify right side
    130,302.61x = 13,114,310,981.56
  5. Step 5: Solve for x
    x = 13,114,310,981.56/130,302.61
  6. Step 6: Final answer
    x = 100,645.04

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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.