Home / 130,705.77-180,374.05-74,117.14

Finding the Fourth Proportional to 130,705.77, 180,374.05 and 74,117.14

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Solution

The fourth proportional to 130,705.77, 180,374.05 and 74,117.14 is: 102,281.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,705.77 : 180,374.05 = 74,117.14 : x
  2. Step 2: Convert to fraction form
    130,705.77/180,374.05 = 74,117.14/x
  3. Step 3: Cross multiply
    130,705.77x = 180,374.05 × 74,117.14
  4. Step 4: Simplify right side
    130,705.77x = 13,368,808,530.92
  5. Step 5: Solve for x
    x = 13,368,808,530.92/130,705.77
  6. Step 6: Final answer
    x = 102,281.71

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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.