Home / 115,011.29-158,659.56-99,068.06

Finding the Fourth Proportional to 115,011.29, 158,659.56 and 99,068.06

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Solution

The fourth proportional to 115,011.29, 158,659.56 and 99,068.06 is: 136,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,011.29 : 158,659.56 = 99,068.06 : x
  2. Step 2: Convert to fraction form
    115,011.29/158,659.56 = 99,068.06/x
  3. Step 3: Cross multiply
    115,011.29x = 158,659.56 × 99,068.06
  4. Step 4: Simplify right side
    115,011.29x = 15,718,095,206.30
  5. Step 5: Solve for x
    x = 15,718,095,206.30/115,011.29
  6. Step 6: Final answer
    x = 136,665.67

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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.