Home / 130,628.04-180,013.95-88,112.76

Finding the Fourth Proportional to 130,628.04, 180,013.95 and 88,112.76

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Solution

The fourth proportional to 130,628.04, 180,013.95 and 88,112.76 is: 121,425.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,628.04 : 180,013.95 = 88,112.76 : x
  2. Step 2: Convert to fraction form
    130,628.04/180,013.95 = 88,112.76/x
  3. Step 3: Cross multiply
    130,628.04x = 180,013.95 × 88,112.76
  4. Step 4: Simplify right side
    130,628.04x = 15,861,525,973.00
  5. Step 5: Solve for x
    x = 15,861,525,973.00/130,628.04
  6. Step 6: Final answer
    x = 121,425.12

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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.