Home / 128,434.86-191,864.73-92,590.27

Finding the Fourth Proportional to 128,434.86, 191,864.73 and 92,590.27

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Solution

The fourth proportional to 128,434.86, 191,864.73 and 92,590.27 is: 138,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,434.86 : 191,864.73 = 92,590.27 : x
  2. Step 2: Convert to fraction form
    128,434.86/191,864.73 = 92,590.27/x
  3. Step 3: Cross multiply
    128,434.86x = 191,864.73 × 92,590.27
  4. Step 4: Simplify right side
    128,434.86x = 17,764,807,154.18
  5. Step 5: Solve for x
    x = 17,764,807,154.18/128,434.86
  6. Step 6: Final answer
    x = 138,317.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.