Home / 150,994.02-208,312.74-86,428.74

Finding the Fourth Proportional to 150,994.02, 208,312.74 and 86,428.74

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Solution

The fourth proportional to 150,994.02, 208,312.74 and 86,428.74 is: 119,237.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,994.02 : 208,312.74 = 86,428.74 : x
  2. Step 2: Convert to fraction form
    150,994.02/208,312.74 = 86,428.74/x
  3. Step 3: Cross multiply
    150,994.02x = 208,312.74 × 86,428.74
  4. Step 4: Simplify right side
    150,994.02x = 18,004,207,644.15
  5. Step 5: Solve for x
    x = 18,004,207,644.15/150,994.02
  6. Step 6: Final answer
    x = 119,237.89

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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.