Home / 105,403.08-145,454.34-57,656.01

Finding the Fourth Proportional to 105,403.08, 145,454.34 and 57,656.01

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Solution

The fourth proportional to 105,403.08, 145,454.34 and 57,656.01 is: 79,564.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,403.08 : 145,454.34 = 57,656.01 : x
  2. Step 2: Convert to fraction form
    105,403.08/145,454.34 = 57,656.01/x
  3. Step 3: Cross multiply
    105,403.08x = 145,454.34 × 57,656.01
  4. Step 4: Simplify right side
    105,403.08x = 8,386,316,881.58
  5. Step 5: Solve for x
    x = 8,386,316,881.58/105,403.08
  6. Step 6: Final answer
    x = 79,564.25

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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.