Home / 157,112.81-235,706.12-51,931.77

Finding the Fourth Proportional to 157,112.81, 235,706.12 and 51,931.77

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Solution

The fourth proportional to 157,112.81, 235,706.12 and 51,931.77 is: 77,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,112.81 : 235,706.12 = 51,931.77 : x
  2. Step 2: Convert to fraction form
    157,112.81/235,706.12 = 51,931.77/x
  3. Step 3: Cross multiply
    157,112.81x = 235,706.12 × 51,931.77
  4. Step 4: Simplify right side
    157,112.81x = 12,240,635,751.77
  5. Step 5: Solve for x
    x = 12,240,635,751.77/157,112.81
  6. Step 6: Final answer
    x = 77,909.85

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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.