Home / 125,622.40-173,316.04-77,858.32

Finding the Fourth Proportional to 125,622.40, 173,316.04 and 77,858.32

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Solution

The fourth proportional to 125,622.40, 173,316.04 and 77,858.32 is: 107,417.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,622.40 : 173,316.04 = 77,858.32 : x
  2. Step 2: Convert to fraction form
    125,622.40/173,316.04 = 77,858.32/x
  3. Step 3: Cross multiply
    125,622.40x = 173,316.04 × 77,858.32
  4. Step 4: Simplify right side
    125,622.40x = 13,494,095,703.45
  5. Step 5: Solve for x
    x = 13,494,095,703.45/125,622.40
  6. Step 6: Final answer
    x = 107,417.91

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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.