Home / 208,582.32-287,822.28-128,013.24

Finding the Fourth Proportional to 208,582.32, 287,822.28 and 128,013.24

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Solution

The fourth proportional to 208,582.32, 287,822.28 and 128,013.24 is: 176,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,582.32 : 287,822.28 = 128,013.24 : x
  2. Step 2: Convert to fraction form
    208,582.32/287,822.28 = 128,013.24/x
  3. Step 3: Cross multiply
    208,582.32x = 287,822.28 × 128,013.24
  4. Step 4: Simplify right side
    208,582.32x = 36,845,062,606.99
  5. Step 5: Solve for x
    x = 36,845,062,606.99/208,582.32
  6. Step 6: Final answer
    x = 176,645.19

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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.