Home / 390,158.06-585,276.03-105,853.07

Finding the Fourth Proportional to 390,158.06, 585,276.03 and 105,853.07

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Solution

The fourth proportional to 390,158.06, 585,276.03 and 105,853.07 is: 158,790.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,158.06 : 585,276.03 = 105,853.07 : x
  2. Step 2: Convert to fraction form
    390,158.06/585,276.03 = 105,853.07/x
  3. Step 3: Cross multiply
    390,158.06x = 585,276.03 × 105,853.07
  4. Step 4: Simplify right side
    390,158.06x = 61,953,264,572.91
  5. Step 5: Solve for x
    x = 61,953,264,572.91/390,158.06
  6. Step 6: Final answer
    x = 158,790.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.