Home / 153,868.60-230,846.10-74,985.40

Finding the Fourth Proportional to 153,868.60, 230,846.10 and 74,985.40

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Solution

The fourth proportional to 153,868.60, 230,846.10 and 74,985.40 is: 112,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,868.60 : 230,846.10 = 74,985.40 : x
  2. Step 2: Convert to fraction form
    153,868.60/230,846.10 = 74,985.40/x
  3. Step 3: Cross multiply
    153,868.60x = 230,846.10 × 74,985.40
  4. Step 4: Simplify right side
    153,868.60x = 17,310,087,146.94
  5. Step 5: Solve for x
    x = 17,310,087,146.94/153,868.60
  6. Step 6: Final answer
    x = 112,499.15

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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.