Home / 137,829.51-190,225.29-84,145.65

Finding the Fourth Proportional to 137,829.51, 190,225.29 and 84,145.65

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Solution

The fourth proportional to 137,829.51, 190,225.29 and 84,145.65 is: 116,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,829.51 : 190,225.29 = 84,145.65 : x
  2. Step 2: Convert to fraction form
    137,829.51/190,225.29 = 84,145.65/x
  3. Step 3: Cross multiply
    137,829.51x = 190,225.29 × 84,145.65
  4. Step 4: Simplify right side
    137,829.51x = 16,006,630,275.69
  5. Step 5: Solve for x
    x = 16,006,630,275.69/137,829.51
  6. Step 6: Final answer
    x = 116,133.55

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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.