Home / 103,526.48-142,875.66-61,076.72

Finding the Fourth Proportional to 103,526.48, 142,875.66 and 61,076.72

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Solution

The fourth proportional to 103,526.48, 142,875.66 and 61,076.72 is: 84,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,526.48 : 142,875.66 = 61,076.72 : x
  2. Step 2: Convert to fraction form
    103,526.48/142,875.66 = 61,076.72/x
  3. Step 3: Cross multiply
    103,526.48x = 142,875.66 × 61,076.72
  4. Step 4: Simplify right side
    103,526.48x = 8,726,376,680.64
  5. Step 5: Solve for x
    x = 8,726,376,680.64/103,526.48
  6. Step 6: Final answer
    x = 84,291.25

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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.