Home / 371,677.90-557,538-105,417.36

Finding the Fourth Proportional to 371,677.90, 557,538 and 105,417.36

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Solution

The fourth proportional to 371,677.90, 557,538 and 105,417.36 is: 158,132.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,677.90 : 557,538 = 105,417.36 : x
  2. Step 2: Convert to fraction form
    371,677.90/557,538 = 105,417.36/x
  3. Step 3: Cross multiply
    371,677.90x = 557,538 × 105,417.36
  4. Step 4: Simplify right side
    371,677.90x = 58,774,184,059.68
  5. Step 5: Solve for x
    x = 58,774,184,059.68/371,677.90
  6. Step 6: Final answer
    x = 158,132.04

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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.