Home / 105,307.13-145,323.77-57,560.46

Finding the Fourth Proportional to 105,307.13, 145,323.77 and 57,560.46

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Solution

The fourth proportional to 105,307.13, 145,323.77 and 57,560.46 is: 79,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,307.13 : 145,323.77 = 57,560.46 : x
  2. Step 2: Convert to fraction form
    105,307.13/145,323.77 = 57,560.46/x
  3. Step 3: Cross multiply
    105,307.13x = 145,323.77 × 57,560.46
  4. Step 4: Simplify right side
    105,307.13x = 8,364,902,762.33
  5. Step 5: Solve for x
    x = 8,364,902,762.33/105,307.13
  6. Step 6: Final answer
    x = 79,433.40

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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.