Home / 107,916.80-161,875.20-96,641.60

Finding the Fourth Proportional to 107,916.80, 161,875.20 and 96,641.60

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Solution

The fourth proportional to 107,916.80, 161,875.20 and 96,641.60 is: 144,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,916.80 : 161,875.20 = 96,641.60 : x
  2. Step 2: Convert to fraction form
    107,916.80/161,875.20 = 96,641.60/x
  3. Step 3: Cross multiply
    107,916.80x = 161,875.20 × 96,641.60
  4. Step 4: Simplify right side
    107,916.80x = 15,643,878,328.32
  5. Step 5: Solve for x
    x = 15,643,878,328.32/107,916.80
  6. Step 6: Final answer
    x = 144,962.40

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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.