Home / 126,580.79-174,681.54-72,131.41

Finding the Fourth Proportional to 126,580.79, 174,681.54 and 72,131.41

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Solution

The fourth proportional to 126,580.79, 174,681.54 and 72,131.41 is: 99,541.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,580.79 : 174,681.54 = 72,131.41 : x
  2. Step 2: Convert to fraction form
    126,580.79/174,681.54 = 72,131.41/x
  3. Step 3: Cross multiply
    126,580.79x = 174,681.54 × 72,131.41
  4. Step 4: Simplify right side
    126,580.79x = 12,600,024,907.76
  5. Step 5: Solve for x
    x = 12,600,024,907.76/126,580.79
  6. Step 6: Final answer
    x = 99,541.37

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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.