Home / 156,931.40-235,425.30-57,231.46

Finding the Fourth Proportional to 156,931.40, 235,425.30 and 57,231.46

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Solution

The fourth proportional to 156,931.40, 235,425.30 and 57,231.46 is: 85,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,931.40 : 235,425.30 = 57,231.46 : x
  2. Step 2: Convert to fraction form
    156,931.40/235,425.30 = 57,231.46/x
  3. Step 3: Cross multiply
    156,931.40x = 235,425.30 × 57,231.46
  4. Step 4: Simplify right side
    156,931.40x = 13,473,733,639.94
  5. Step 5: Solve for x
    x = 13,473,733,639.94/156,931.40
  6. Step 6: Final answer
    x = 85,857.47

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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.