Home / 122,946.56-169,670.16-71,964.32

Finding the Fourth Proportional to 122,946.56, 169,670.16 and 71,964.32

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Solution

The fourth proportional to 122,946.56, 169,670.16 and 71,964.32 is: 99,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,946.56 : 169,670.16 = 71,964.32 : x
  2. Step 2: Convert to fraction form
    122,946.56/169,670.16 = 71,964.32/x
  3. Step 3: Cross multiply
    122,946.56x = 169,670.16 × 71,964.32
  4. Step 4: Simplify right side
    122,946.56x = 12,210,197,688.69
  5. Step 5: Solve for x
    x = 12,210,197,688.69/122,946.56
  6. Step 6: Final answer
    x = 99,313.05

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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.