Home / 103,627.40-143,006.02-61,188.64

Finding the Fourth Proportional to 103,627.40, 143,006.02 and 61,188.64

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Solution

The fourth proportional to 103,627.40, 143,006.02 and 61,188.64 is: 84,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,627.40 : 143,006.02 = 61,188.64 : x
  2. Step 2: Convert to fraction form
    103,627.40/143,006.02 = 61,188.64/x
  3. Step 3: Cross multiply
    103,627.40x = 143,006.02 × 61,188.64
  4. Step 4: Simplify right side
    103,627.40x = 8,750,343,875.61
  5. Step 5: Solve for x
    x = 8,750,343,875.61/103,627.40
  6. Step 6: Final answer
    x = 84,440.45

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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.