Home / 145,943.64-201,402.18-78,875.64

Finding the Fourth Proportional to 145,943.64, 201,402.18 and 78,875.64

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Solution

The fourth proportional to 145,943.64, 201,402.18 and 78,875.64 is: 108,848.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,943.64 : 201,402.18 = 78,875.64 : x
  2. Step 2: Convert to fraction form
    145,943.64/201,402.18 = 78,875.64/x
  3. Step 3: Cross multiply
    145,943.64x = 201,402.18 × 78,875.64
  4. Step 4: Simplify right side
    145,943.64x = 15,885,725,844.90
  5. Step 5: Solve for x
    x = 15,885,725,844.90/145,943.64
  6. Step 6: Final answer
    x = 108,848.36

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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.