Home / 153,460.17-230,189.75-69,121.61

Finding the Fourth Proportional to 153,460.17, 230,189.75 and 69,121.61

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Solution

The fourth proportional to 153,460.17, 230,189.75 and 69,121.61 is: 103,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,460.17 : 230,189.75 = 69,121.61 : x
  2. Step 2: Convert to fraction form
    153,460.17/230,189.75 = 69,121.61/x
  3. Step 3: Cross multiply
    153,460.17x = 230,189.75 × 69,121.61
  4. Step 4: Simplify right side
    153,460.17x = 15,911,085,779.89
  5. Step 5: Solve for x
    x = 15,911,085,779.89/153,460.17
  6. Step 6: Final answer
    x = 103,682.19

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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.