Home / 114,740.40-172,026.72-77,207.16

Finding the Fourth Proportional to 114,740.40, 172,026.72 and 77,207.16

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Solution

The fourth proportional to 114,740.40, 172,026.72 and 77,207.16 is: 115,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,740.40 : 172,026.72 = 77,207.16 : x
  2. Step 2: Convert to fraction form
    114,740.40/172,026.72 = 77,207.16/x
  3. Step 3: Cross multiply
    114,740.40x = 172,026.72 × 77,207.16
  4. Step 4: Simplify right side
    114,740.40x = 13,281,694,495.32
  5. Step 5: Solve for x
    x = 13,281,694,495.32/114,740.40
  6. Step 6: Final answer
    x = 115,754.30

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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.