Home / 107,089.90-147,783.89-61,767.16

Finding the Fourth Proportional to 107,089.90, 147,783.89 and 61,767.16

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Solution

The fourth proportional to 107,089.90, 147,783.89 and 61,767.16 is: 85,238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,089.90 : 147,783.89 = 61,767.16 : x
  2. Step 2: Convert to fraction form
    107,089.90/147,783.89 = 61,767.16/x
  3. Step 3: Cross multiply
    107,089.90x = 147,783.89 × 61,767.16
  4. Step 4: Simplify right side
    107,089.90x = 9,128,190,964.01
  5. Step 5: Solve for x
    x = 9,128,190,964.01/107,089.90
  6. Step 6: Final answer
    x = 85,238.58

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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.