Home / 112,421.40-168,632.10-56,434.20

Finding the Fourth Proportional to 112,421.40, 168,632.10 and 56,434.20

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Solution

The fourth proportional to 112,421.40, 168,632.10 and 56,434.20 is: 84,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,421.40 : 168,632.10 = 56,434.20 : x
  2. Step 2: Convert to fraction form
    112,421.40/168,632.10 = 56,434.20/x
  3. Step 3: Cross multiply
    112,421.40x = 168,632.10 × 56,434.20
  4. Step 4: Simplify right side
    112,421.40x = 9,516,617,657.82
  5. Step 5: Solve for x
    x = 9,516,617,657.82/112,421.40
  6. Step 6: Final answer
    x = 84,651.30

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1.5x scale

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.