Home / 103,865.63-155,824.73-28,985.76

Finding the Fourth Proportional to 103,865.63, 155,824.73 and 28,985.76

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Solution

The fourth proportional to 103,865.63, 155,824.73 and 28,985.76 is: 43,485.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,865.63 : 155,824.73 = 28,985.76 : x
  2. Step 2: Convert to fraction form
    103,865.63/155,824.73 = 28,985.76/x
  3. Step 3: Cross multiply
    103,865.63x = 155,824.73 × 28,985.76
  4. Step 4: Simplify right side
    103,865.63x = 4,516,698,225.84
  5. Step 5: Solve for x
    x = 4,516,698,225.84/103,865.63
  6. Step 6: Final answer
    x = 43,485.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.