Home / 153,605.32-211,979.83-89,937.16

Finding the Fourth Proportional to 153,605.32, 211,979.83 and 89,937.16

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Solution

The fourth proportional to 153,605.32, 211,979.83 and 89,937.16 is: 124,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,605.32 : 211,979.83 = 89,937.16 : x
  2. Step 2: Convert to fraction form
    153,605.32/211,979.83 = 89,937.16/x
  3. Step 3: Cross multiply
    153,605.32x = 211,979.83 × 89,937.16
  4. Step 4: Simplify right side
    153,605.32x = 19,064,863,887.48
  5. Step 5: Solve for x
    x = 19,064,863,887.48/153,605.32
  6. Step 6: Final answer
    x = 124,115.91

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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.