Home / 205,386.86-283,428.32-112,248.91

Finding the Fourth Proportional to 205,386.86, 283,428.32 and 112,248.91

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Solution

The fourth proportional to 205,386.86, 283,428.32 and 112,248.91 is: 154,900.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,386.86 : 283,428.32 = 112,248.91 : x
  2. Step 2: Convert to fraction form
    205,386.86/283,428.32 = 112,248.91/x
  3. Step 3: Cross multiply
    205,386.86x = 283,428.32 × 112,248.91
  4. Step 4: Simplify right side
    205,386.86x = 31,814,518,181.89
  5. Step 5: Solve for x
    x = 31,814,518,181.89/205,386.86
  6. Step 6: Final answer
    x = 154,900.46

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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.