Home / 147,117.56-203,065.67-86,707.76

Finding the Fourth Proportional to 147,117.56, 203,065.67 and 86,707.76

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Solution

The fourth proportional to 147,117.56, 203,065.67 and 86,707.76 is: 119,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,117.56 : 203,065.67 = 86,707.76 : x
  2. Step 2: Convert to fraction form
    147,117.56/203,065.67 = 86,707.76/x
  3. Step 3: Cross multiply
    147,117.56x = 203,065.67 × 86,707.76
  4. Step 4: Simplify right side
    147,117.56x = 17,607,368,945.06
  5. Step 5: Solve for x
    x = 17,607,368,945.06/147,117.56
  6. Step 6: Final answer
    x = 119,682.31

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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.