Home / 102,457.92-153,734.32-43,307.36

Finding the Fourth Proportional to 102,457.92, 153,734.32 and 43,307.36

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Solution

The fourth proportional to 102,457.92, 153,734.32 and 43,307.36 is: 64,981.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,457.92 : 153,734.32 = 43,307.36 : x
  2. Step 2: Convert to fraction form
    102,457.92/153,734.32 = 43,307.36/x
  3. Step 3: Cross multiply
    102,457.92x = 153,734.32 × 43,307.36
  4. Step 4: Simplify right side
    102,457.92x = 6,657,827,540.60
  5. Step 5: Solve for x
    x = 6,657,827,540.60/102,457.92
  6. Step 6: Final answer
    x = 64,981.09

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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.