Home / 102,566.22-153,444.74-77,678.16

Finding the Fourth Proportional to 102,566.22, 153,444.74 and 77,678.16

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Solution

The fourth proportional to 102,566.22, 153,444.74 and 77,678.16 is: 116,210.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,566.22 : 153,444.74 = 77,678.16 : x
  2. Step 2: Convert to fraction form
    102,566.22/153,444.74 = 77,678.16/x
  3. Step 3: Cross multiply
    102,566.22x = 153,444.74 × 77,678.16
  4. Step 4: Simplify right side
    102,566.22x = 11,919,304,676.49
  5. Step 5: Solve for x
    x = 11,919,304,676.49/102,566.22
  6. Step 6: Final answer
    x = 116,210.82

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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.