Home / 124,362.30-186,543.45-105,116.70

Finding the Fourth Proportional to 124,362.30, 186,543.45 and 105,116.70

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Solution

The fourth proportional to 124,362.30, 186,543.45 and 105,116.70 is: 157,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,362.30 : 186,543.45 = 105,116.70 : x
  2. Step 2: Convert to fraction form
    124,362.30/186,543.45 = 105,116.70/x
  3. Step 3: Cross multiply
    124,362.30x = 186,543.45 × 105,116.70
  4. Step 4: Simplify right side
    124,362.30x = 19,608,831,870.62
  5. Step 5: Solve for x
    x = 19,608,831,870.62/124,362.30
  6. Step 6: Final answer
    x = 157,675.05

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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.