Home / 151,730.77-209,386.32-83,749.04

Finding the Fourth Proportional to 151,730.77, 209,386.32 and 83,749.04

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Solution

The fourth proportional to 151,730.77, 209,386.32 and 83,749.04 is: 115,572.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,730.77 : 209,386.32 = 83,749.04 : x
  2. Step 2: Convert to fraction form
    151,730.77/209,386.32 = 83,749.04/x
  3. Step 3: Cross multiply
    151,730.77x = 209,386.32 × 83,749.04
  4. Step 4: Simplify right side
    151,730.77x = 17,535,902,713.34
  5. Step 5: Solve for x
    x = 17,535,902,713.34/151,730.77
  6. Step 6: Final answer
    x = 115,572.49

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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.