Home / 153,131.52-211,319.68-89,479.04

Finding the Fourth Proportional to 153,131.52, 211,319.68 and 89,479.04

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Solution

The fourth proportional to 153,131.52, 211,319.68 and 89,479.04 is: 123,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,131.52 : 211,319.68 = 89,479.04 : x
  2. Step 2: Convert to fraction form
    153,131.52/211,319.68 = 89,479.04/x
  3. Step 3: Cross multiply
    153,131.52x = 211,319.68 × 89,479.04
  4. Step 4: Simplify right side
    153,131.52x = 18,908,682,099.51
  5. Step 5: Solve for x
    x = 18,908,682,099.51/153,131.52
  6. Step 6: Final answer
    x = 123,480.01

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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.