Home / 153,637.62-212,066.80-89,123.17

Finding the Fourth Proportional to 153,637.62, 212,066.80 and 89,123.17

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Solution

The fourth proportional to 153,637.62, 212,066.80 and 89,123.17 is: 123,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,637.62 : 212,066.80 = 89,123.17 : x
  2. Step 2: Convert to fraction form
    153,637.62/212,066.80 = 89,123.17/x
  3. Step 3: Cross multiply
    153,637.62x = 212,066.80 × 89,123.17
  4. Step 4: Simplify right side
    153,637.62x = 18,900,065,467.76
  5. Step 5: Solve for x
    x = 18,900,065,467.76/153,637.62
  6. Step 6: Final answer
    x = 123,017.17

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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.