Home / 153,525-211,865.87-89,864.16

Finding the Fourth Proportional to 153,525, 211,865.87 and 89,864.16

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Solution

The fourth proportional to 153,525, 211,865.87 and 89,864.16 is: 124,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,525 : 211,865.87 = 89,864.16 : x
  2. Step 2: Convert to fraction form
    153,525/211,865.87 = 89,864.16/x
  3. Step 3: Cross multiply
    153,525x = 211,865.87 × 89,864.16
  4. Step 4: Simplify right side
    153,525x = 19,039,147,990.90
  5. Step 5: Solve for x
    x = 19,039,147,990.90/153,525
  6. Step 6: Final answer
    x = 124,013.34

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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.