Home / 151,511.36-209,081.82-83,526.76

Finding the Fourth Proportional to 151,511.36, 209,081.82 and 83,526.76

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Solution

The fourth proportional to 151,511.36, 209,081.82 and 83,526.76 is: 115,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,511.36 : 209,081.82 = 83,526.76 : x
  2. Step 2: Convert to fraction form
    151,511.36/209,081.82 = 83,526.76/x
  3. Step 3: Cross multiply
    151,511.36x = 209,081.82 × 83,526.76
  4. Step 4: Simplify right side
    151,511.36x = 17,463,927,574.08
  5. Step 5: Solve for x
    x = 17,463,927,574.08/151,511.36
  6. Step 6: Final answer
    x = 115,264.81

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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.