Home / 153,042.10-229,563.15-128,547.70

Finding the Fourth Proportional to 153,042.10, 229,563.15 and 128,547.70

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Solution

The fourth proportional to 153,042.10, 229,563.15 and 128,547.70 is: 192,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,042.10 : 229,563.15 = 128,547.70 : x
  2. Step 2: Convert to fraction form
    153,042.10/229,563.15 = 128,547.70/x
  3. Step 3: Cross multiply
    153,042.10x = 229,563.15 × 128,547.70
  4. Step 4: Simplify right side
    153,042.10x = 29,509,814,937.26
  5. Step 5: Solve for x
    x = 29,509,814,937.26/153,042.10
  6. Step 6: Final answer
    x = 192,821.55

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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.