Home / 145,009.64-200,063.12-91,275.05

Finding the Fourth Proportional to 145,009.64, 200,063.12 and 91,275.05

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Solution

The fourth proportional to 145,009.64, 200,063.12 and 91,275.05 is: 125,927.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,009.64 : 200,063.12 = 91,275.05 : x
  2. Step 2: Convert to fraction form
    145,009.64/200,063.12 = 91,275.05/x
  3. Step 3: Cross multiply
    145,009.64x = 200,063.12 × 91,275.05
  4. Step 4: Simplify right side
    145,009.64x = 18,260,771,324.94
  5. Step 5: Solve for x
    x = 18,260,771,324.94/145,009.64
  6. Step 6: Final answer
    x = 125,927.98

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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.