Home / 145,545.48-200,842.02-81,871.02

Finding the Fourth Proportional to 145,545.48, 200,842.02 and 81,871.02

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Solution

The fourth proportional to 145,545.48, 200,842.02 and 81,871.02 is: 112,975.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,545.48 : 200,842.02 = 81,871.02 : x
  2. Step 2: Convert to fraction form
    145,545.48/200,842.02 = 81,871.02/x
  3. Step 3: Cross multiply
    145,545.48x = 200,842.02 × 81,871.02
  4. Step 4: Simplify right side
    145,545.48x = 16,443,141,036.26
  5. Step 5: Solve for x
    x = 16,443,141,036.26/145,545.48
  6. Step 6: Final answer
    x = 112,975.96

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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.