Home / 154,145.16-212,726.52-89,614.08

Finding the Fourth Proportional to 154,145.16, 212,726.52 and 89,614.08

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Solution

The fourth proportional to 154,145.16, 212,726.52 and 89,614.08 is: 123,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,145.16 : 212,726.52 = 89,614.08 : x
  2. Step 2: Convert to fraction form
    154,145.16/212,726.52 = 89,614.08/x
  3. Step 3: Cross multiply
    154,145.16x = 212,726.52 × 89,614.08
  4. Step 4: Simplify right side
    154,145.16x = 19,063,291,381.40
  5. Step 5: Solve for x
    x = 19,063,291,381.40/154,145.16
  6. Step 6: Final answer
    x = 123,671.03

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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.