Home / 133,038.55-183,591.77-72,608.70

Finding the Fourth Proportional to 133,038.55, 183,591.77 and 72,608.70

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Solution

The fourth proportional to 133,038.55, 183,591.77 and 72,608.70 is: 100,199.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,038.55 : 183,591.77 = 72,608.70 : x
  2. Step 2: Convert to fraction form
    133,038.55/183,591.77 = 72,608.70/x
  3. Step 3: Cross multiply
    133,038.55x = 183,591.77 × 72,608.70
  4. Step 4: Simplify right side
    133,038.55x = 13,330,360,075.82
  5. Step 5: Solve for x
    x = 13,330,360,075.82/133,038.55
  6. Step 6: Final answer
    x = 100,199.23

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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.