Home / 112,990.32-155,925.08-62,689.52

Finding the Fourth Proportional to 112,990.32, 155,925.08 and 62,689.52

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Solution

The fourth proportional to 112,990.32, 155,925.08 and 62,689.52 is: 86,510.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,990.32 : 155,925.08 = 62,689.52 : x
  2. Step 2: Convert to fraction form
    112,990.32/155,925.08 = 62,689.52/x
  3. Step 3: Cross multiply
    112,990.32x = 155,925.08 × 62,689.52
  4. Step 4: Simplify right side
    112,990.32x = 9,774,868,421.16
  5. Step 5: Solve for x
    x = 9,774,868,421.16/112,990.32
  6. Step 6: Final answer
    x = 86,510.67

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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.