Home / 128,057.10-176,554.51-105,001.98

Finding the Fourth Proportional to 128,057.10, 176,554.51 and 105,001.98

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Solution

The fourth proportional to 128,057.10, 176,554.51 and 105,001.98 is: 144,768.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,057.10 : 176,554.51 = 105,001.98 : x
  2. Step 2: Convert to fraction form
    128,057.10/176,554.51 = 105,001.98/x
  3. Step 3: Cross multiply
    128,057.10x = 176,554.51 × 105,001.98
  4. Step 4: Simplify right side
    128,057.10x = 18,538,572,245.16
  5. Step 5: Solve for x
    x = 18,538,572,245.16/128,057.10
  6. Step 6: Final answer
    x = 144,768.01

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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.