Home / 122,600.48-169,206.96-74,881.28

Finding the Fourth Proportional to 122,600.48, 169,206.96 and 74,881.28

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Solution

The fourth proportional to 122,600.48, 169,206.96 and 74,881.28 is: 103,347.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,600.48 : 169,206.96 = 74,881.28 : x
  2. Step 2: Convert to fraction form
    122,600.48/169,206.96 = 74,881.28/x
  3. Step 3: Cross multiply
    122,600.48x = 169,206.96 × 74,881.28
  4. Step 4: Simplify right side
    122,600.48x = 12,670,433,749.71
  5. Step 5: Solve for x
    x = 12,670,433,749.71/122,600.48
  6. Step 6: Final answer
    x = 103,347.34

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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.