Home / 113,206.74-156,226.08-70,790.10

Finding the Fourth Proportional to 113,206.74, 156,226.08 and 70,790.10

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Solution

The fourth proportional to 113,206.74, 156,226.08 and 70,790.10 is: 97,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,206.74 : 156,226.08 = 70,790.10 : x
  2. Step 2: Convert to fraction form
    113,206.74/156,226.08 = 70,790.10/x
  3. Step 3: Cross multiply
    113,206.74x = 156,226.08 × 70,790.10
  4. Step 4: Simplify right side
    113,206.74x = 11,059,259,825.81
  5. Step 5: Solve for x
    x = 11,059,259,825.81/113,206.74
  6. Step 6: Final answer
    x = 97,690.82

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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.