Home / 145,990.14-201,516.55-85,580.22

Finding the Fourth Proportional to 145,990.14, 201,516.55 and 85,580.22

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Solution

The fourth proportional to 145,990.14, 201,516.55 and 85,580.22 is: 118,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,990.14 : 201,516.55 = 85,580.22 : x
  2. Step 2: Convert to fraction form
    145,990.14/201,516.55 = 85,580.22/x
  3. Step 3: Cross multiply
    145,990.14x = 201,516.55 × 85,580.22
  4. Step 4: Simplify right side
    145,990.14x = 17,245,830,682.64
  5. Step 5: Solve for x
    x = 17,245,830,682.64/145,990.14
  6. Step 6: Final answer
    x = 118,130.11

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Double scale
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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.