Home / 153,159.60-211,329.23-89,485.10

Finding the Fourth Proportional to 153,159.60, 211,329.23 and 89,485.10

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Solution

The fourth proportional to 153,159.60, 211,329.23 and 89,485.10 is: 123,471.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,159.60 : 211,329.23 = 89,485.10 : x
  2. Step 2: Convert to fraction form
    153,159.60/211,329.23 = 89,485.10/x
  3. Step 3: Cross multiply
    153,159.60x = 211,329.23 × 89,485.10
  4. Step 4: Simplify right side
    153,159.60x = 18,910,817,279.47
  5. Step 5: Solve for x
    x = 18,910,817,279.47/153,159.60
  6. Step 6: Final answer
    x = 123,471.32

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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.