Home / 130,030.60-195,045.90-79,948.30

Finding the Fourth Proportional to 130,030.60, 195,045.90 and 79,948.30

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Solution

The fourth proportional to 130,030.60, 195,045.90 and 79,948.30 is: 119,922.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,030.60 : 195,045.90 = 79,948.30 : x
  2. Step 2: Convert to fraction form
    130,030.60/195,045.90 = 79,948.30/x
  3. Step 3: Cross multiply
    130,030.60x = 195,045.90 × 79,948.30
  4. Step 4: Simplify right side
    130,030.60x = 15,593,588,126.97
  5. Step 5: Solve for x
    x = 15,593,588,126.97/130,030.60
  6. Step 6: Final answer
    x = 119,922.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.