Home / 185,313.42-255,733.20-100,430.28

Finding the Fourth Proportional to 185,313.42, 255,733.20 and 100,430.28

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Solution

The fourth proportional to 185,313.42, 255,733.20 and 100,430.28 is: 138,594.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,313.42 : 255,733.20 = 100,430.28 : x
  2. Step 2: Convert to fraction form
    185,313.42/255,733.20 = 100,430.28/x
  3. Step 3: Cross multiply
    185,313.42x = 255,733.20 × 100,430.28
  4. Step 4: Simplify right side
    185,313.42x = 25,683,356,881.30
  5. Step 5: Solve for x
    x = 25,683,356,881.30/185,313.42
  6. Step 6: Final answer
    x = 138,594.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.