Home / 105,186.16-157,841.70-42,036.13

Finding the Fourth Proportional to 105,186.16, 157,841.70 and 42,036.13

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Solution

The fourth proportional to 105,186.16, 157,841.70 and 42,036.13 is: 63,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,186.16 : 157,841.70 = 42,036.13 : x
  2. Step 2: Convert to fraction form
    105,186.16/157,841.70 = 42,036.13/x
  3. Step 3: Cross multiply
    105,186.16x = 157,841.70 × 42,036.13
  4. Step 4: Simplify right side
    105,186.16x = 6,635,054,220.62
  5. Step 5: Solve for x
    x = 6,635,054,220.62/105,186.16
  6. Step 6: Final answer
    x = 63,079.16

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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.