Home / 70,178.47-105,196.77-30,223.51

Finding the Fourth Proportional to 70,178.47, 105,196.77 and 30,223.51

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Solution

The fourth proportional to 70,178.47, 105,196.77 and 30,223.51 is: 45,304.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,178.47 : 105,196.77 = 30,223.51 : x
  2. Step 2: Convert to fraction form
    70,178.47/105,196.77 = 30,223.51/x
  3. Step 3: Cross multiply
    70,178.47x = 105,196.77 × 30,223.51
  4. Step 4: Simplify right side
    70,178.47x = 3,179,415,630.06
  5. Step 5: Solve for x
    x = 3,179,415,630.06/70,178.47
  6. Step 6: Final answer
    x = 45,304.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.