Home / 145,963.32-201,429.29-78,895.32

Finding the Fourth Proportional to 145,963.32, 201,429.29 and 78,895.32

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Solution

The fourth proportional to 145,963.32, 201,429.29 and 78,895.32 is: 108,875.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,963.32 : 201,429.29 = 78,895.32 : x
  2. Step 2: Convert to fraction form
    145,963.32/201,429.29 = 78,895.32/x
  3. Step 3: Cross multiply
    145,963.32x = 201,429.29 × 78,895.32
  4. Step 4: Simplify right side
    145,963.32x = 15,891,827,897.45
  5. Step 5: Solve for x
    x = 15,891,827,897.45/145,963.32
  6. Step 6: Final answer
    x = 108,875.49

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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.