Home / 112,298.63-154,954.49-64,543.05

Finding the Fourth Proportional to 112,298.63, 154,954.49 and 64,543.05

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Solution

The fourth proportional to 112,298.63, 154,954.49 and 64,543.05 is: 89,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,298.63 : 154,954.49 = 64,543.05 : x
  2. Step 2: Convert to fraction form
    112,298.63/154,954.49 = 64,543.05/x
  3. Step 3: Cross multiply
    112,298.63x = 154,954.49 × 64,543.05
  4. Step 4: Simplify right side
    112,298.63x = 10,001,235,073.08
  5. Step 5: Solve for x
    x = 10,001,235,073.08/112,298.63
  6. Step 6: Final answer
    x = 89,059.28

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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.