Home / 153,026.91-211,218.75-99,308.70

Finding the Fourth Proportional to 153,026.91, 211,218.75 and 99,308.70

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Solution

The fourth proportional to 153,026.91, 211,218.75 and 99,308.70 is: 137,073.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,026.91 : 211,218.75 = 99,308.70 : x
  2. Step 2: Convert to fraction form
    153,026.91/211,218.75 = 99,308.70/x
  3. Step 3: Cross multiply
    153,026.91x = 211,218.75 × 99,308.70
  4. Step 4: Simplify right side
    153,026.91x = 20,975,859,478.13
  5. Step 5: Solve for x
    x = 20,975,859,478.13/153,026.91
  6. Step 6: Final answer
    x = 137,073.01

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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.