Home / 154,624.40-213,381.57-86,641.93

Finding the Fourth Proportional to 154,624.40, 213,381.57 and 86,641.93

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Solution

The fourth proportional to 154,624.40, 213,381.57 and 86,641.93 is: 119,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,624.40 : 213,381.57 = 86,641.93 : x
  2. Step 2: Convert to fraction form
    154,624.40/213,381.57 = 86,641.93/x
  3. Step 3: Cross multiply
    154,624.40x = 213,381.57 × 86,641.93
  4. Step 4: Simplify right side
    154,624.40x = 18,487,792,484.41
  5. Step 5: Solve for x
    x = 18,487,792,484.41/154,624.40
  6. Step 6: Final answer
    x = 119,565.81

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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.