Home / 145,931.76-219,756.48-127,433.52

Finding the Fourth Proportional to 145,931.76, 219,756.48 and 127,433.52

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Solution

The fourth proportional to 145,931.76, 219,756.48 and 127,433.52 is: 191,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,931.76 : 219,756.48 = 127,433.52 : x
  2. Step 2: Convert to fraction form
    145,931.76/219,756.48 = 127,433.52/x
  3. Step 3: Cross multiply
    145,931.76x = 219,756.48 × 127,433.52
  4. Step 4: Simplify right side
    145,931.76x = 28,004,341,789.21
  5. Step 5: Solve for x
    x = 28,004,341,789.21/145,931.76
  6. Step 6: Final answer
    x = 191,900.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.