Home / 105,090.30-145,018.89-59,762.16

Finding the Fourth Proportional to 105,090.30, 145,018.89 and 59,762.16

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Solution

The fourth proportional to 105,090.30, 145,018.89 and 59,762.16 is: 82,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,090.30 : 145,018.89 = 59,762.16 : x
  2. Step 2: Convert to fraction form
    105,090.30/145,018.89 = 59,762.16/x
  3. Step 3: Cross multiply
    105,090.30x = 145,018.89 × 59,762.16
  4. Step 4: Simplify right side
    105,090.30x = 8,666,642,107.20
  5. Step 5: Solve for x
    x = 8,666,642,107.20/105,090.30
  6. Step 6: Final answer
    x = 82,468.53

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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.