Home / 109,515.80-164,273.70-70,117.40

Finding the Fourth Proportional to 109,515.80, 164,273.70 and 70,117.40

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Solution

The fourth proportional to 109,515.80, 164,273.70 and 70,117.40 is: 105,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,515.80 : 164,273.70 = 70,117.40 : x
  2. Step 2: Convert to fraction form
    109,515.80/164,273.70 = 70,117.40/x
  3. Step 3: Cross multiply
    109,515.80x = 164,273.70 × 70,117.40
  4. Step 4: Simplify right side
    109,515.80x = 11,518,444,732.38
  5. Step 5: Solve for x
    x = 11,518,444,732.38/109,515.80
  6. Step 6: Final answer
    x = 105,176.10

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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.