Home / 145,836.16-201,264.44-81,309.76

Finding the Fourth Proportional to 145,836.16, 201,264.44 and 81,309.76

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Solution

The fourth proportional to 145,836.16, 201,264.44 and 81,309.76 is: 112,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,836.16 : 201,264.44 = 81,309.76 : x
  2. Step 2: Convert to fraction form
    145,836.16/201,264.44 = 81,309.76/x
  3. Step 3: Cross multiply
    145,836.16x = 201,264.44 × 81,309.76
  4. Step 4: Simplify right side
    145,836.16x = 16,364,763,312.93
  5. Step 5: Solve for x
    x = 16,364,763,312.93/145,836.16
  6. Step 6: Final answer
    x = 112,213.34

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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.