Home / 257,121.59-385,931.15-124,095.50

Finding the Fourth Proportional to 257,121.59, 385,931.15 and 124,095.50

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Solution

The fourth proportional to 257,121.59, 385,931.15 and 124,095.50 is: 186,263.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,121.59 : 385,931.15 = 124,095.50 : x
  2. Step 2: Convert to fraction form
    257,121.59/385,931.15 = 124,095.50/x
  3. Step 3: Cross multiply
    257,121.59x = 385,931.15 × 124,095.50
  4. Step 4: Simplify right side
    257,121.59x = 47,892,316,474.69
  5. Step 5: Solve for x
    x = 47,892,316,474.69/257,121.59
  6. Step 6: Final answer
    x = 186,263.31

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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.