Home / 130,629.32-195,780.02-70,655.40

Finding the Fourth Proportional to 130,629.32, 195,780.02 and 70,655.40

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Solution

The fourth proportional to 130,629.32, 195,780.02 and 70,655.40 is: 105,894.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,629.32 : 195,780.02 = 70,655.40 : x
  2. Step 2: Convert to fraction form
    130,629.32/195,780.02 = 70,655.40/x
  3. Step 3: Cross multiply
    130,629.32x = 195,780.02 × 70,655.40
  4. Step 4: Simplify right side
    130,629.32x = 13,832,915,625.11
  5. Step 5: Solve for x
    x = 13,832,915,625.11/130,629.32
  6. Step 6: Final answer
    x = 105,894.42

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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.