Home / 127,985.19-176,607.32-71,400.21

Finding the Fourth Proportional to 127,985.19, 176,607.32 and 71,400.21

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Solution

The fourth proportional to 127,985.19, 176,607.32 and 71,400.21 is: 98,525.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,985.19 : 176,607.32 = 71,400.21 : x
  2. Step 2: Convert to fraction form
    127,985.19/176,607.32 = 71,400.21/x
  3. Step 3: Cross multiply
    127,985.19x = 176,607.32 × 71,400.21
  4. Step 4: Simplify right side
    127,985.19x = 12,609,799,378.54
  5. Step 5: Solve for x
    x = 12,609,799,378.54/127,985.19
  6. Step 6: Final answer
    x = 98,525.46

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1.5x scale

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.