Home / 218,775.24-301,925.70-121,985.64

Finding the Fourth Proportional to 218,775.24, 301,925.70 and 121,985.64

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Solution

The fourth proportional to 218,775.24, 301,925.70 and 121,985.64 is: 168,349.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,775.24 : 301,925.70 = 121,985.64 : x
  2. Step 2: Convert to fraction form
    218,775.24/301,925.70 = 121,985.64/x
  3. Step 3: Cross multiply
    218,775.24x = 301,925.70 × 121,985.64
  4. Step 4: Simplify right side
    218,775.24x = 36,830,599,746.95
  5. Step 5: Solve for x
    x = 36,830,599,746.95/218,775.24
  6. Step 6: Final answer
    x = 168,349.03

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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.