Home / 145,870.47-201,220.77-91,502.34

Finding the Fourth Proportional to 145,870.47, 201,220.77 and 91,502.34

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Solution

The fourth proportional to 145,870.47, 201,220.77 and 91,502.34 is: 126,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,870.47 : 201,220.77 = 91,502.34 : x
  2. Step 2: Convert to fraction form
    145,870.47/201,220.77 = 91,502.34/x
  3. Step 3: Cross multiply
    145,870.47x = 201,220.77 × 91,502.34
  4. Step 4: Simplify right side
    145,870.47x = 18,412,171,311.60
  5. Step 5: Solve for x
    x = 18,412,171,311.60/145,870.47
  6. Step 6: Final answer
    x = 126,222.75

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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.