Home / 153,734.13-212,007.11-99,957.69

Finding the Fourth Proportional to 153,734.13, 212,007.11 and 99,957.69

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Solution

The fourth proportional to 153,734.13, 212,007.11 and 99,957.69 is: 137,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,734.13 : 212,007.11 = 99,957.69 : x
  2. Step 2: Convert to fraction form
    153,734.13/212,007.11 = 99,957.69/x
  3. Step 3: Cross multiply
    153,734.13x = 212,007.11 × 99,957.69
  4. Step 4: Simplify right side
    153,734.13x = 21,191,740,479.39
  5. Step 5: Solve for x
    x = 21,191,740,479.39/153,734.13
  6. Step 6: Final answer
    x = 137,846.69

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1.5x scale

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.