Home / 100,526.44-151,495.66-90,543.70

Finding the Fourth Proportional to 100,526.44, 151,495.66 and 90,543.70

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Solution

The fourth proportional to 100,526.44, 151,495.66 and 90,543.70 is: 136,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,526.44 : 151,495.66 = 90,543.70 : x
  2. Step 2: Convert to fraction form
    100,526.44/151,495.66 = 90,543.70/x
  3. Step 3: Cross multiply
    100,526.44x = 151,495.66 × 90,543.70
  4. Step 4: Simplify right side
    100,526.44x = 13,716,977,590.34
  5. Step 5: Solve for x
    x = 13,716,977,590.34/100,526.44
  6. Step 6: Final answer
    x = 136,451.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.