Home / 127,345.80-190,970.10-38,569.80

Finding the Fourth Proportional to 127,345.80, 190,970.10 and 38,569.80

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Solution

The fourth proportional to 127,345.80, 190,970.10 and 38,569.80 is: 57,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,345.80 : 190,970.10 = 38,569.80 : x
  2. Step 2: Convert to fraction form
    127,345.80/190,970.10 = 38,569.80/x
  3. Step 3: Cross multiply
    127,345.80x = 190,970.10 × 38,569.80
  4. Step 4: Simplify right side
    127,345.80x = 7,365,678,562.98
  5. Step 5: Solve for x
    x = 7,365,678,562.98/127,345.80
  6. Step 6: Final answer
    x = 57,839.98

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1.5x scale

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.