Home / 236,347.51-326,160.59-128,919.85

Finding the Fourth Proportional to 236,347.51, 326,160.59 and 128,919.85

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Solution

The fourth proportional to 236,347.51, 326,160.59 and 128,919.85 is: 177,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,347.51 : 326,160.59 = 128,919.85 : x
  2. Step 2: Convert to fraction form
    236,347.51/326,160.59 = 128,919.85/x
  3. Step 3: Cross multiply
    236,347.51x = 326,160.59 × 128,919.85
  4. Step 4: Simplify right side
    236,347.51x = 42,048,574,338.71
  5. Step 5: Solve for x
    x = 42,048,574,338.71/236,347.51
  6. Step 6: Final answer
    x = 177,909.95

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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.