Home / 69,434.10-103,541.45-68,802.60

Finding the Fourth Proportional to 69,434.10, 103,541.45 and 68,802.60

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Solution

The fourth proportional to 69,434.10, 103,541.45 and 68,802.60 is: 102,599.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,434.10 : 103,541.45 = 68,802.60 : x
  2. Step 2: Convert to fraction form
    69,434.10/103,541.45 = 68,802.60/x
  3. Step 3: Cross multiply
    69,434.10x = 103,541.45 × 68,802.60
  4. Step 4: Simplify right side
    69,434.10x = 7,123,920,623.76
  5. Step 5: Solve for x
    x = 7,123,920,623.76/69,434.10
  6. Step 6: Final answer
    x = 102,599.74

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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.