Home / 105,390.91-158,148.74-38,877.79

Finding the Fourth Proportional to 105,390.91, 158,148.74 and 38,877.79

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Solution

The fourth proportional to 105,390.91, 158,148.74 and 38,877.79 is: 58,339.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,390.91 : 158,148.74 = 38,877.79 : x
  2. Step 2: Convert to fraction form
    105,390.91/158,148.74 = 38,877.79/x
  3. Step 3: Cross multiply
    105,390.91x = 158,148.74 × 38,877.79
  4. Step 4: Simplify right side
    105,390.91x = 6,148,473,502.48
  5. Step 5: Solve for x
    x = 6,148,473,502.48/105,390.91
  6. Step 6: Final answer
    x = 58,339.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.