Home / 187,089.12-258,188.04-111,681.36

Finding the Fourth Proportional to 187,089.12, 258,188.04 and 111,681.36

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Solution

The fourth proportional to 187,089.12, 258,188.04 and 111,681.36 is: 154,123.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,089.12 : 258,188.04 = 111,681.36 : x
  2. Step 2: Convert to fraction form
    187,089.12/258,188.04 = 111,681.36/x
  3. Step 3: Cross multiply
    187,089.12x = 258,188.04 × 111,681.36
  4. Step 4: Simplify right side
    187,089.12x = 28,834,791,442.93
  5. Step 5: Solve for x
    x = 28,834,791,442.93/187,089.12
  6. Step 6: Final answer
    x = 154,123.29

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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.