Home / 151,509.06-209,083.95-83,528.52

Finding the Fourth Proportional to 151,509.06, 209,083.95 and 83,528.52

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Solution

The fourth proportional to 151,509.06, 209,083.95 and 83,528.52 is: 115,270.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,509.06 : 209,083.95 = 83,528.52 : x
  2. Step 2: Convert to fraction form
    151,509.06/209,083.95 = 83,528.52/x
  3. Step 3: Cross multiply
    151,509.06x = 209,083.95 × 83,528.52
  4. Step 4: Simplify right side
    151,509.06x = 17,464,472,899.25
  5. Step 5: Solve for x
    x = 17,464,472,899.25/151,509.06
  6. Step 6: Final answer
    x = 115,270.16

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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.