Home / 104,901.81-157,418.34-42,572.31

Finding the Fourth Proportional to 104,901.81, 157,418.34 and 42,572.31

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Solution

The fourth proportional to 104,901.81, 157,418.34 and 42,572.31 is: 63,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,901.81 : 157,418.34 = 42,572.31 : x
  2. Step 2: Convert to fraction form
    104,901.81/157,418.34 = 42,572.31/x
  3. Step 3: Cross multiply
    104,901.81x = 157,418.34 × 42,572.31
  4. Step 4: Simplify right side
    104,901.81x = 6,701,662,370.17
  5. Step 5: Solve for x
    x = 6,701,662,370.17/104,901.81
  6. Step 6: Final answer
    x = 63,885.10

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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.