Home / 128,955.65-193,407.82-64,896.69

Finding the Fourth Proportional to 128,955.65, 193,407.82 and 64,896.69

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Solution

The fourth proportional to 128,955.65, 193,407.82 and 64,896.69 is: 97,332.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,955.65 : 193,407.82 = 64,896.69 : x
  2. Step 2: Convert to fraction form
    128,955.65/193,407.82 = 64,896.69/x
  3. Step 3: Cross multiply
    128,955.65x = 193,407.82 × 64,896.69
  4. Step 4: Simplify right side
    128,955.65x = 12,551,527,901.15
  5. Step 5: Solve for x
    x = 12,551,527,901.15/128,955.65
  6. Step 6: Final answer
    x = 97,332.13

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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.