Home / 145,983.40-201,442.04-107,763.28

Finding the Fourth Proportional to 145,983.40, 201,442.04 and 107,763.28

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Solution

The fourth proportional to 145,983.40, 201,442.04 and 107,763.28 is: 148,702.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,983.40 : 201,442.04 = 107,763.28 : x
  2. Step 2: Convert to fraction form
    145,983.40/201,442.04 = 107,763.28/x
  3. Step 3: Cross multiply
    145,983.40x = 201,442.04 × 107,763.28
  4. Step 4: Simplify right side
    145,983.40x = 21,708,054,960.29
  5. Step 5: Solve for x
    x = 21,708,054,960.29/145,983.40
  6. Step 6: Final answer
    x = 148,702.22

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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.