Home / 145,764.05-201,085.65-85,297.60

Finding the Fourth Proportional to 145,764.05, 201,085.65 and 85,297.60

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Solution

The fourth proportional to 145,764.05, 201,085.65 and 85,297.60 is: 117,670.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,764.05 : 201,085.65 = 85,297.60 : x
  2. Step 2: Convert to fraction form
    145,764.05/201,085.65 = 85,297.60/x
  3. Step 3: Cross multiply
    145,764.05x = 201,085.65 × 85,297.60
  4. Step 4: Simplify right side
    145,764.05x = 17,152,123,590.80
  5. Step 5: Solve for x
    x = 17,152,123,590.80/145,764.05
  6. Step 6: Final answer
    x = 117,670.47

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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.