Home / 105,164.24-145,130.10-57,421.22

Finding the Fourth Proportional to 105,164.24, 145,130.10 and 57,421.22

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Solution

The fourth proportional to 105,164.24, 145,130.10 and 57,421.22 is: 79,243.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,164.24 : 145,130.10 = 57,421.22 : x
  2. Step 2: Convert to fraction form
    105,164.24/145,130.10 = 57,421.22/x
  3. Step 3: Cross multiply
    105,164.24x = 145,130.10 × 57,421.22
  4. Step 4: Simplify right side
    105,164.24x = 8,333,547,400.72
  5. Step 5: Solve for x
    x = 8,333,547,400.72/105,164.24
  6. Step 6: Final answer
    x = 79,243.17

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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.