Home / 145,710.90-201,086.01-85,287.18

Finding the Fourth Proportional to 145,710.90, 201,086.01 and 85,287.18

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Solution

The fourth proportional to 145,710.90, 201,086.01 and 85,287.18 is: 117,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,710.90 : 201,086.01 = 85,287.18 : x
  2. Step 2: Convert to fraction form
    145,710.90/201,086.01 = 85,287.18/x
  3. Step 3: Cross multiply
    145,710.90x = 201,086.01 × 85,287.18
  4. Step 4: Simplify right side
    145,710.90x = 17,150,058,730.35
  5. Step 5: Solve for x
    x = 17,150,058,730.35/145,710.90
  6. Step 6: Final answer
    x = 117,699.22

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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.