Home / 105,271.79-145,275.45-57,525.14

Finding the Fourth Proportional to 105,271.79, 145,275.45 and 57,525.14

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Solution

The fourth proportional to 105,271.79, 145,275.45 and 57,525.14 is: 79,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,271.79 : 145,275.45 = 57,525.14 : x
  2. Step 2: Convert to fraction form
    105,271.79/145,275.45 = 57,525.14/x
  3. Step 3: Cross multiply
    105,271.79x = 145,275.45 × 57,525.14
  4. Step 4: Simplify right side
    105,271.79x = 8,356,990,599.81
  5. Step 5: Solve for x
    x = 8,356,990,599.81/105,271.79
  6. Step 6: Final answer
    x = 79,384.90

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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.