Home / 94,938.78-130,970.91-67,720.88

Finding the Fourth Proportional to 94,938.78, 130,970.91 and 67,720.88

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Solution

The fourth proportional to 94,938.78, 130,970.91 and 67,720.88 is: 93,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,938.78 : 130,970.91 = 67,720.88 : x
  2. Step 2: Convert to fraction form
    94,938.78/130,970.91 = 67,720.88/x
  3. Step 3: Cross multiply
    94,938.78x = 130,970.91 × 67,720.88
  4. Step 4: Simplify right side
    94,938.78x = 8,869,465,860.98
  5. Step 5: Solve for x
    x = 8,869,465,860.98/94,938.78
  6. Step 6: Final answer
    x = 93,423.00

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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.