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Finding the Fourth Proportional to 145,970.91, 201,363.37 and 126,807.66

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Solution

The fourth proportional to 145,970.91, 201,363.37 and 126,807.66 is: 174,928.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,970.91 : 201,363.37 = 126,807.66 : x
  2. Step 2: Convert to fraction form
    145,970.91/201,363.37 = 126,807.66/x
  3. Step 3: Cross multiply
    145,970.91x = 201,363.37 × 126,807.66
  4. Step 4: Simplify right side
    145,970.91x = 25,534,417,759.41
  5. Step 5: Solve for x
    x = 25,534,417,759.41/145,970.91
  6. Step 6: Final answer
    x = 174,928.13

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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.