Home / 134,865.70-202,298.55-72,657.70

Finding the Fourth Proportional to 134,865.70, 202,298.55 and 72,657.70

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Solution

The fourth proportional to 134,865.70, 202,298.55 and 72,657.70 is: 108,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,865.70 : 202,298.55 = 72,657.70 : x
  2. Step 2: Convert to fraction form
    134,865.70/202,298.55 = 72,657.70/x
  3. Step 3: Cross multiply
    134,865.70x = 202,298.55 × 72,657.70
  4. Step 4: Simplify right side
    134,865.70x = 14,698,547,356.34
  5. Step 5: Solve for x
    x = 14,698,547,356.34/134,865.70
  6. Step 6: Final answer
    x = 108,986.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.