Home / 108,715.07-149,887.91-70,406.93

Finding the Fourth Proportional to 108,715.07, 149,887.91 and 70,406.93

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Solution

The fourth proportional to 108,715.07, 149,887.91 and 70,406.93 is: 97,071.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,715.07 : 149,887.91 = 70,406.93 : x
  2. Step 2: Convert to fraction form
    108,715.07/149,887.91 = 70,406.93/x
  3. Step 3: Cross multiply
    108,715.07x = 149,887.91 × 70,406.93
  4. Step 4: Simplify right side
    108,715.07x = 10,553,146,485.74
  5. Step 5: Solve for x
    x = 10,553,146,485.74/108,715.07
  6. Step 6: Final answer
    x = 97,071.61

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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.