Home / 104,403.64-144,078.08-56,657.40

Finding the Fourth Proportional to 104,403.64, 144,078.08 and 56,657.40

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Solution

The fourth proportional to 104,403.64, 144,078.08 and 56,657.40 is: 78,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,403.64 : 144,078.08 = 56,657.40 : x
  2. Step 2: Convert to fraction form
    104,403.64/144,078.08 = 56,657.40/x
  3. Step 3: Cross multiply
    104,403.64x = 144,078.08 × 56,657.40
  4. Step 4: Simplify right side
    104,403.64x = 8,163,089,409.79
  5. Step 5: Solve for x
    x = 8,163,089,409.79/104,403.64
  6. Step 6: Final answer
    x = 78,187.79

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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.