Home / 130,578.04-180,190.02-73,988.20

Finding the Fourth Proportional to 130,578.04, 180,190.02 and 73,988.20

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Solution

The fourth proportional to 130,578.04, 180,190.02 and 73,988.20 is: 102,099.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,578.04 : 180,190.02 = 73,988.20 : x
  2. Step 2: Convert to fraction form
    130,578.04/180,190.02 = 73,988.20/x
  3. Step 3: Cross multiply
    130,578.04x = 180,190.02 × 73,988.20
  4. Step 4: Simplify right side
    130,578.04x = 13,331,935,237.76
  5. Step 5: Solve for x
    x = 13,331,935,237.76/130,578.04
  6. Step 6: Final answer
    x = 102,099.37

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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.