Home / 147,917.24-203,695.80-128,528

Finding the Fourth Proportional to 147,917.24, 203,695.80 and 128,528

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Solution

The fourth proportional to 147,917.24, 203,695.80 and 128,528 is: 176,995.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,917.24 : 203,695.80 = 128,528 : x
  2. Step 2: Convert to fraction form
    147,917.24/203,695.80 = 128,528/x
  3. Step 3: Cross multiply
    147,917.24x = 203,695.80 × 128,528
  4. Step 4: Simplify right side
    147,917.24x = 26,180,613,782.40
  5. Step 5: Solve for x
    x = 26,180,613,782.40/147,917.24
  6. Step 6: Final answer
    x = 176,995.01

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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.