Home / 155,557.01-214,657.54-87,570.47

Finding the Fourth Proportional to 155,557.01, 214,657.54 and 87,570.47

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Solution

The fourth proportional to 155,557.01, 214,657.54 and 87,570.47 is: 120,840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,557.01 : 214,657.54 = 87,570.47 : x
  2. Step 2: Convert to fraction form
    155,557.01/214,657.54 = 87,570.47/x
  3. Step 3: Cross multiply
    155,557.01x = 214,657.54 × 87,570.47
  4. Step 4: Simplify right side
    155,557.01x = 18,797,661,666.84
  5. Step 5: Solve for x
    x = 18,797,661,666.84/155,557.01
  6. Step 6: Final answer
    x = 120,840.98

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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.