Home / 127,220.63-175,569.93-70,632

Finding the Fourth Proportional to 127,220.63, 175,569.93 and 70,632

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Solution

The fourth proportional to 127,220.63, 175,569.93 and 70,632 is: 97,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,220.63 : 175,569.93 = 70,632 : x
  2. Step 2: Convert to fraction form
    127,220.63/175,569.93 = 70,632/x
  3. Step 3: Cross multiply
    127,220.63x = 175,569.93 × 70,632
  4. Step 4: Simplify right side
    127,220.63x = 12,400,855,295.76
  5. Step 5: Solve for x
    x = 12,400,855,295.76/127,220.63
  6. Step 6: Final answer
    x = 97,475.20

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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.