Home / 143,875.02-198,547.65-80,211.54

Finding the Fourth Proportional to 143,875.02, 198,547.65 and 80,211.54

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Solution

The fourth proportional to 143,875.02, 198,547.65 and 80,211.54 is: 110,691.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,875.02 : 198,547.65 = 80,211.54 : x
  2. Step 2: Convert to fraction form
    143,875.02/198,547.65 = 80,211.54/x
  3. Step 3: Cross multiply
    143,875.02x = 198,547.65 × 80,211.54
  4. Step 4: Simplify right side
    143,875.02x = 15,925,812,769.88
  5. Step 5: Solve for x
    x = 15,925,812,769.88/143,875.02
  6. Step 6: Final answer
    x = 110,691.99

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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.