Home / 108,000.36-149,071.77-62,688.51

Finding the Fourth Proportional to 108,000.36, 149,071.77 and 62,688.51

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Solution

The fourth proportional to 108,000.36, 149,071.77 and 62,688.51 is: 86,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,000.36 : 149,071.77 = 62,688.51 : x
  2. Step 2: Convert to fraction form
    108,000.36/149,071.77 = 62,688.51/x
  3. Step 3: Cross multiply
    108,000.36x = 149,071.77 × 62,688.51
  4. Step 4: Simplify right side
    108,000.36x = 9,345,087,144.36
  5. Step 5: Solve for x
    x = 9,345,087,144.36/108,000.36
  6. Step 6: Final answer
    x = 86,528.30

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1.5x scale

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.