Home / 105,122.61-145,088.01-62,683.88

Finding the Fourth Proportional to 105,122.61, 145,088.01 and 62,683.88

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Solution

The fourth proportional to 105,122.61, 145,088.01 and 62,683.88 is: 86,514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,122.61 : 145,088.01 = 62,683.88 : x
  2. Step 2: Convert to fraction form
    105,122.61/145,088.01 = 62,683.88/x
  3. Step 3: Cross multiply
    105,122.61x = 145,088.01 × 62,683.88
  4. Step 4: Simplify right side
    105,122.61x = 9,094,678,682.84
  5. Step 5: Solve for x
    x = 9,094,678,682.84/105,122.61
  6. Step 6: Final answer
    x = 86,514.96

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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.