Home / 147,648.19-221,139.91-103,472.16

Finding the Fourth Proportional to 147,648.19, 221,139.91 and 103,472.16

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Solution

The fourth proportional to 147,648.19, 221,139.91 and 103,472.16 is: 154,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,648.19 : 221,139.91 = 103,472.16 : x
  2. Step 2: Convert to fraction form
    147,648.19/221,139.91 = 103,472.16/x
  3. Step 3: Cross multiply
    147,648.19x = 221,139.91 × 103,472.16
  4. Step 4: Simplify right side
    147,648.19x = 22,881,824,149.91
  5. Step 5: Solve for x
    x = 22,881,824,149.91/147,648.19
  6. Step 6: Final answer
    x = 154,975.31

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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.