Home / 208,455.90-287,669.37-112,962.77

Finding the Fourth Proportional to 208,455.90, 287,669.37 and 112,962.77

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Solution

The fourth proportional to 208,455.90, 287,669.37 and 112,962.77 is: 155,888.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,455.90 : 287,669.37 = 112,962.77 : x
  2. Step 2: Convert to fraction form
    208,455.90/287,669.37 = 112,962.77/x
  3. Step 3: Cross multiply
    208,455.90x = 287,669.37 × 112,962.77
  4. Step 4: Simplify right side
    208,455.90x = 32,495,927,441.01
  5. Step 5: Solve for x
    x = 32,495,927,441.01/208,455.90
  6. Step 6: Final answer
    x = 155,888.74

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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.